Strip guider



March 26, 1935.

K. F. TANDEI'L STRIP GUIDER Filed July 19, 1952' 2 Sheets-Sheet 1 YOMWMarch 26, 1935.

K. FL TANDEl STRIP GUIDER Filed July 19, 1932 2 Sheets-Sheet 2 FILL L15lilri T r|l|l||l1L llnlllllllllllli I I I I Patented Mar. 26, I935UNITED "STATES PATENT OFFICE I I 1,995,462 STRIP GUIDERV vKart FritzTandel, Chemnitz, Germany, assignmto C. G. Haubold A. G., Chemnitz,Germany, a joint-stock company of Germany Application July 19, 1932,Serial No, 623,409 5" Claims. (01. 26-66) My invention relates toimprovements in strip guiders, and more particularly in mechanically andwhich permits a rapid movement of the fabric. -With this object in view"my invention cons'sts in constructing the apparatus controlling theguiding members in the form of a:rotary member adapted to be engaged.byg the edge of the fabric which deviates fromits normal path, the saidrotary memberbeing connected with the stand 1, and which is acted 20 22tending to rock the same roller 20 towards the edge of the fabric andthe milled roller 11. is connected by pairs of gear wheels 15, 16, Hand18 withan arm 19, the gear wheel 15 being fixed to the arbor 110 of theroller 11, the gear wheels 16 and 17 being The roller 11 have been usedin all the. views to indicate corresponding parts. In said drawings. 7

Fig. 1 is a diagrammatical plan view showing a pair of guiders acting onthe edges of a fabric,

Fig. 2 is an elevation showing the apparatus,

Fig. 3 is a'sectional elevation taken on the line 3-3 of Fig. 2, andFig. 4 is a top plan view of Fig. 3.

Referring to the example illustrated in the drawings and moreparticularly in Fig. 1, one guider is provided at each side of thefabric ,1, and each guider comprises an upper. roller .2 mounted in a.stationary bearing, and a lower roller 4 cooperating therewith andbodily movable relatively thereto, the said guidersbeing disposedangularly of the edge of the fabric, as is known in the art. In front ofeach guider a feeler is provided which controls the relative position ofthe rollers 2 and 4, and which comprises a milled roller 11 adapted tobe engaged by the edge of the fabric which deviates from its correctpath, the fabric being adapted to be pressed on the. roller 11 by meansof a roller 20.

As appears from Figs. 2 to 4, the guider is mounted on a stand or base 1which may be The arm 19 acts on the lever 7 through the intermediary ofa roller 24 mounted on an arm 70 35 secured to or made integral with thelever 7. micrometer-screw 23 the lever erted by the roller 20 on thefabric and'the roller 11 when the edge of the fabric passes between thesame. Thus, when the fabric deviates and itsedge gets between therollers 20.and 11, the milled roller 11 is rotated, and such rotarymove-' ment is transmitted throughthe intermediary of the gear wheels15, 16, 17 and 18 to the arm 19,

art. By thedownward movement of the lever '7 power is stored in thespring 9, and when the 'in the proper position relatively to the surfaceof 25 edge of the fabric has been brought into correct position and theroller 11 is relieved of the pressure of the roller 20 the spring 9pulls the lever '7 upwardly and with the roller 4 into engagement withthe fabric. By the upward movement of the lever '7 the train of gearwheels 15, 16,-1'7, 18 is slightly rotated rearwardly, and theresistance opposed to the movement of the lever '7 by the said gearwheels is exceedingly small, because the gear wheels and the roller 11are small in size, and because the roller 11 is out of engagement withthe fabric and the roller 20. During the return movement of the lever '7no rotary movement is transmitted to the roller 20, which has been setby the screw 23 into position slightly away from the roller 11.Therefore the mass and the inertia of the moving bodies and thereforethe resistance opposed to the movement of the lever '7 are very small sothat the mechanism immediately responds to the action of the edge of thefabric thereon.

By means of the micrometer-screw 23 the roller 20 may be placedexceedingly close to the roller 11 and out of frictional engagementtherewith. Therefore even very thin fabrics are adapted to exert hightension, and the Spring 9 may be made so strong that the rollers 2 and 4are pressed together with high force, and the roller 11 is rotated bythe spring immediately after it has left the edge of the fabric.

I claim:

1. In a guider for fabrics, the combination with a pair of guiderrollers controlling the movement of the fabric, of a feeler devicecomprising a power storing member adapted to'press said rollers intoengagement'with the fabric moving between the same, a feeling membermounted for rotation of more than one revolution and having feelerroller and adapted to a fixed location and adapted to be engaged by theface of the fabric being deviated adjacent the edge thereof, and aconnection between said feeling member and power storing member adaptedduring several revolutions of the feeling member to store power in saidpower storing member and to reduce the pressure exerted thereby on saidrollers,'the size and mass of said feeling member being so small thatthe resistance 0pposed thereby to the action of the. power storingmember is reduced to a minimum.

2. In a guider for fabrics, the combination with a pair of guiderrollers controlling the movement of the fabric, of a feeler devicecomprising a power storing member adapted to press said rollers intoengagement with the fabric moving between the same, a feeler rolleradapted to be. engaged by the edge of the fabric being deviated, acounter roller cooperating with said press the edge of the fabric beingdeviated into frictional engagement therewith, means for setting saidcounter roller into the position in which it is out of frictionalengagement with said feeler roller and adapted to press the edge of thefabric into frictional engagement therewith, and an operative connectionbetween said feeler roller and power storing member adapted to storepower in said power storing member and to reduce the pressure exertedthereby on said guider rollers, the size and mass of said feeler rollerbeing so small that the resistance opposed thereby to the action ofthe'power storing'member is reduced to a minimum.

3. In a guider for fabrics, the combination with a pair of guiderrollers controlling the movement of the fabric, of a feeler devicecomprising a power storing member adapted to press said rollers intoengagement with the fabric moving between the same, a feeler rolleradapted to be engaged by the edge of the fabric being deviated, acounter roller cooperating with said feeler roller, resilient meanstending to move said counter roller towards said feeler roller, meansfor limiting the movement of said counter roller towards the feelerroller in position slightly out of frictional engagement therewith, andan operative connection between said feeler roller and power storingmember adapted to store power in said power storing member and to reducethe pressure exerted thereby on said guider rollers, the size and massof said feeler roller being so small that the resistance opposed therebyto the action of the power storing member is reduced to a minimum.

4. In a guider for fabrics, the combination with a pair of guiderrollers controlling the movement of the fabric, a bearing for one ofsaid rollers permitting bodily movement thereof, and a-power storingmember acting on said bearing and tending to press the same with saidrollers towards each other, of a feeler body comprising a rotary memberadapted for engagement with the edge of the fabric being deviated, andan operative connection between said rotary member and bearingcomprising a train of gear wheels and an arm acting on said bearing,said operative connection being constructed for retracting said bearingwith the rollers away from each other.

5. In a guider for fabrics, the combination with a pair of guiderrollers each extending beyond the edge of the fabric in any positionassumed thereby and controlling the movement thereof, of a feeler devicecomprising a power storing member adapted to press said rollers intoengagement with the fabric moving between the same, a feeling memberrotatable only about a fixed axis adapted to be engaged by the face ofthe fabric being deviated adjacent the edge thereof and beyond theguider rollers, and an operative connection between said feeling memberand power storing member adapted to store power in said power storingmember and to reduce the pressure exerted thereby on said rollers.

KARL FRITZ TANDEL.

